Journal ArticleDOI
Mesoscale Convective Complexes Over the United States During 1981— Annual Summary
TLDR
In this article, satellite images are used to document the life cycles of Mesoscale Convective Complexes (MCCs) which occurred over the United States during the warm season months of 1981.Abstract:
Satellite images are used to document the life cycles of Mesoscale Convective Complexes (MCCs) which occurred over the United States during the warm season months of 1981. These systems were found to exhibit characteristics similar to aspects of MCCs discussed recently in the literature; however, the behavior of several of the convective systems poses questions that can only be answered through detailed studies. The systems did produce a variety of significant weather events ranging from severe thunderstorms to locally heavy rains and flooding. Information is also provided for a number of other significant mesoscale convective systems that, although they did not meet the stringent MCC definition criteria, caught the investigators' attention. This documentation should provide a useful starting point for scientists who might wish to pursue studies of mesoscale convective weather systems.read more
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Journal ArticleDOI
Mesoscale convective systems
TL;DR: The largest convective clouds are mesoscale convective systems, which account for a large portion of Earth's cloud cover and precipitation, and the patterns of wind and weather associated with mesoscales are important local phenomena that often must be forecast on short timescales.
Journal ArticleDOI
Mesoscale Convective Complexes in the Americas
Ines Velasco,J. Michael Fritsch +1 more
TL;DR: In this paper, the authors used enhanced infrared satellite imagery and conventional surface and sounding data to document the existence and climatological characteristics of mesoscale convective complexes (MCCs) over mid-latitude South America (south of 20°S) and in the tropical region between North and South America.
Journal ArticleDOI
Extreme Precipitation Events in Southeastern South America and Large-Scale Convective Patterns in the South Atlantic Convergence Zone
TL;DR: In this paper, the occurrence of daily extreme precipitation events in southeast South America (Sao Paulo, Brazil) and the spatial features of convective activity in the South Atlantic convergence zone (SACZ) are investigated.
Journal ArticleDOI
Meteorological Causes of the Secular Variations in Observed Extreme Precipitation Events for the Conterminous United States
Kenneth E. Kunkel,David R. Easterling,David A. R. Kristovich,Byron E. Gleason,Leslie Stoecker,Rebecca L. Smith +5 more
TL;DR: In this article, daily extreme precipitation events, exceeding a threshold for a 1-in-5-yr occurrence, were identified from a network of 935 Cooperative Observer stations for the period of 1908-2009.
Journal ArticleDOI
Predicting the Movement of Mesoscale Convective Complexes
TL;DR: In this article, a procedure for operationally predicting the movement of the mesobeta-scale convective elements responsible for the heavy rain in mesoscale convective complexes is presented, based on the well-known concepts that the motion of convective systems can be considered the sum of an advective component, given by the mean motion of the cells composing the system, and a propagation component, defined by the rate and location of new cell formation relative to existing cells.